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Sodium and Potassium in Normal and Paralyzed Chlamydomonas
Author(s) -
RONKIN R. R.,
BURETZ KARL M.
Publication year - 1960
Publication title -
the journal of protozoology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.067
H-Index - 77
eISSN - 1550-7408
pISSN - 0022-3921
DOI - 10.1111/j.1550-7408.1960.tb00715.x
Subject(s) - chlamydomonas , potassium , sodium , motility , flagellum , biophysics , chemistry , penetration (warfare) , strain (injury) , mutant , biology , microbiology and biotechnology , biochemistry , anatomy , organic chemistry , operations research , engineering , gene
SYNOPSIS. Rates of penetration of sodium (Na 24 ) and potassium (K/ 12 ) into several strains of Chlamydomonas , a flagellated unicellular alga, were studied. Sodium was taken up to a negligible extent by normal, motile cells. Potassium was taken up readily by normal cells and by mutant strains with impaired locomotion. Normal cells tended, during the first hour, to reach equilibrium most rapidly, involving the exchange of TS‐of the cellular K. Flagella‐less cells approached equilibrium more slowly, involving the exchange of 79′yc of the K. Paralyzed cells gave intermediate values. These results suggest that motile cells may immobilize larger amounts of K than do those with impaired motility.